图书来源:二元合金相图及中间相晶体结构 二元合金相图及中间相晶体结构
作 者:唐仁政 田荣璋
出版时间:2009-05
定 价:320元
图书ISBN:978-7-81105-831-4
出版单位:中南大学出版社
Yang Hu, Yang Yang, and Weidong HaoInformation Engineering School, University of Science and Technology Beijing, Beijing 100083, China
摘 要:<正>An approach to traffic engineering that uses differentiated services (DS) and multi-protocol label switching (MPLS) to provide quantitative network quality of service (QoS) guarantees over an IP network was proposed. The traffic associated with assured forwarding (AF) Per-Hop behavior (PHB) in differentiated services enabled IP network was modeled. Furthermore, the effect of such traffic on network resources with the objective of developing efficient traffic engineering methodologies was analyzed and the optimization problem relating to traffic engineering in DS networks with an MPLS core was formulated. The service received by TCP and UDP flows when they share either a link or a MPLS traffic trunk was also compared and found that in order to benefit from traffic engineering, MPLS trunks should be implemented end-end (first router to last router). If some part of the network is MPLS trunk-unaware, the benefits are reduced or eliminated.
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